Automatic hay-baler.



L. TIBBE 81: C. A. RHOTEN.

AUTOMATIC HAY BALER.

APPLIOATION nun) AUG. 18,1913.

1 ,120,346, Patented Dec. 8, 1914.

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THE NORR/S PETERS co PHOTO-LITHOU WASHINGVON. 11 c.

L. TIBBE &'G. A. RHOTEN.

Patented Dec. 8,1914.

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auozwzq "RE NORRIS PETERS C11, PHOTO'LIYIID" WASIIINGTON, D.

L. TIBBB & C. A. RHOTEN AUTOMATIC HAY BALER.

APPLICATION FILED um. 1a, 1913.

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AUTOMATIC HAY-BALER.

Specification of Letters Patent.

Patented Dec. 8, 19M.

Application filed. August 18, 1913. Serial No. 785,411.

To all whom it may concern:

Be it known that we, LOUIS TIBBE and CHILTON A. Rno'rnN, citizens of the United States, residing at Macon, in the county of Brown, State of Ohio, have invented certain new and useful Improvements in Automatic Hay-Balers; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to hay balers and has special reference to the tying and wire cutting mechanism for such a baler.

The principal object of the invention is to improve and simplify the general construction of the wiring mechanisms for hay balers. In carrying out this object there is provided an improved means to automatically tie or twist, and then to cut the wires as rapidly as the average hay .or straw balers can operate, said wires being led from four spools direct and without any previous preparation of the wires.

A second object of the invention is to pro vide an improved form of cutting mechanism for use in connection with such a device.

lVith the above andother objects in view the invention consists in general of certain novel details of construction and combination of parts hereinafter fully described, illustrated in the accompanying drawings, and specifically claimed.

In the present embodiment of the inven tion there has been only illustrated the tying and cutting mechanism as separate from the balance of the baler, since the invention resides specifically in this tying and cutting mechanism and it is not deemed necessary to illustrate or describe the various other parts of a specific baler as this invention may be used in connection with various balers of many different types.

In the accompanying drawings, like charactors of reference indicate like parts in the several views, and :Figure 1 is a plan view of a device constructed in accordance with this invention. Fig. 2 is a side elevation thereof. Fig. 3 is a front elevation thereof. Fig. 4 is a view of the inside of the tying head, the cover plate being removed. Fig. 5 is an edge view of the tying head partly in section. Fig. 6 is a section on the line 66 of Fig. 4. Fig. 7 is a section on the line 7-7 of Fig. 4. Fig. 8 is an enlarged detail view of one of the wire cutting blades, the view being taken from the base. Fig. 9 is a view similar to Fig. 8 but showing the edge of the wire cutting device.

I11 order to illustrate the application of the device there has been shown the two beams 10 which form part ofthe ordinary baler. On these beams 10 are mounted the bearings 11in which is journaled a shaft 12. This shaft is driven in any of the usual manners.

Fixed on the shaft 12 are the interrupted bevel gears 17 and 18. Extending transversely across the baler is the frame 19 having the upper and lower guide members 20 for purposes hereinafter to be described. Extendingfrom the frame of the baler are members 21 wherein are carried the bearings 22. J'ournaled in the bearing 22 and in the transverse frame are certain shafts indicated respectively at 23 and 24;, the shafts 23 being driven by thegear 17 and the shaft 24 driven by the gear 18. On the shaft 23 is secured a crank 25 which is connected by means of a link 26 to the tying and cutting head which is indicated in general at 27. On the shaft 24 is similarly mounted a crank 28 which is connected by a link 29 with what is preferably termed the blank head 30. On this blank head 30 are provided the wire carrying forks 31.

Now from the foregoing it will be plain that when the shaft 12 is revolved the shafts 23 and 24 will be likewise revolved but the latter shaft will be revolved in an interrupted manner. In other words these shafts will revolve through a certain part of a single revolution and will then stop for a period of time su'llicient to allow the blank portions of the interrupted gears to pass the gears 32 which are carried on the shafts 23 and 24 and then when the teeth portions of said gears 17 and 18 engages these gears 32 the shafts 23 and 24 will again revolve. By reason of this construction the heads 27 and 30 will be moved inward toward each other and will then stop in that position for a short period of time after which they will then be separated. It is of course obvious that the interrupted gears must be of such nature and so designed that they will properly accomplish this result.

On the shaft 12 is fixed a third interrupted gear 33 and this gear meshes with a bevel gear 34; fixed upon a shaft 35 supported in suitable bearings 36. This shaft 35 has slid ing connection with a .universal joint 37 which is in turn connected by a shaft 38 to a universal joint 39, the shaft 38 having sliding connection with said universal ,joint.

lhe tying head consists of two halves 4:0 suitably secured together so that the head is hollow. lVithin this hollow head is journaled a shaft 41 connected to the universal joint 39. On the shaft 41 is keyed a gear 4:2 which meshes with the idler gears 43 carried on suitable stub shafts tt journaled in the tying head. These idler gears 4L3 mesh with the tying gears 45 which are fixed upon suitable shafts d7 journaled in the tying head. The spaces between certain of the teeth of the gears 45 are deepened to provide the tying slots A77. The gears 45 have one side flat and against this flat side engages the flat side of a cutting blade 18. This cutting blade 48 is square in contour and is provided at two of its opposite edges with wire receiving notches 49 which are arranged, when in alinement with the notches or deep ened spaces between the teeth of the wheels 4:5, to register therewith. The cutting blades 18 are furthermore frictionally engaged with the wheels 45 so that normally they turn therewith. In order to stop therotation of the cutting blade there is provided in the tying head a bar 50 having the arms 51 which are adapted to engage the side of the cutting blade when the bar 50 is moved forward. The bar 50 is suitably held in the head by means of bolts 52 passing through slots 53 in the arms 51. On the back of the bar 50 there is provided a lug 54C and keyed to the shaft 41 is a cam 55 which is so arranged that at each revolution of the shaft 41 the cam will operate to force the bar 50 forward and bring the arms 51 in engagement with the cutting blades.

For the purpose of permitting entry of the wire into the deepened teeth spaces 47' the head 27 is provided on its inner edge with slots 56.

It is to be understood that the interrupted gear 33 is so arranged as to rotate the gear 3% at the time when the two heads are brought close together so that the wires will be twisted at this particular time.

The operation of the device is as follows. When the plunger common in baling presses has made its last forward movement and completed the bale in the bale chamber the clutch on the shaft 12 is moved to clutching position. This causes rotationof the shaft 12 and through the interrupted gears 17 and 18 causes the tying and blank heads to move toward each other. While these heads are yet in motion the first tooth of the interrupter gear 33 engages with its mating bevel gear and turns the wire twisting gears through one-half a revolution and then comes to rest. Prior to the starting of the clutch on the shaft 12 and before the bale has been started the four wires from suitable reels are unwound partly and the ends twisted together within the baling chamber with the ordinary pliers. Now as the gears 17 and 18 move the heads together the four wires mentioned will be brought together in pairs by the inward movement of the two heads. After the heads have been brought together they stop a short period of time and the interrupted gear continues the movement started and through the medium of the train of gears 42, A3 and 45 revolves the latter revolutions. At this time the cam 55 operates to bring the arms 51 against the cutter blades and stop these blades from 80 further revolution. The twisting gears,

however, keep on turning through a further half revolution and thus cut the wires in the manner of the ordinary wire cutting pliers. Further movement of the cam permits the withdrawal of the stop arms 51 by means of the spring 57. Now at this time the entire gear comes to a stop in the tying head with the slot of the tying gear, wire cutter, and entrance slot in the head in registry. As soon as this is accomplished the interrupted gears 17 and 18 come into action to withdraw the heads to the original position. The above cycle of operation beginning with the drawing in and twisting of the four wires is again repeated as many times as there are bales to be tied.

There has thus been provided a simple and efficient device of the kind described and of the character specified.

It is obvious that many minor changes may be made in the form and construction of this invention without departing from the material principles thereof. It is not therefore desired to confine the invention to the exact form herein shown and described, but it is wished to include all such as come properly within the scope claimed.

Having thus described the invention, what is claimed as new, is

1. In a wire tying device for hay balers, a tying head, a twisting gear revolubly journaled to said head, a revoluble cutter blade carried by the head and frictionally engaging said gear, and a stop mechanism engageable with the blade to hold the same from movement while the gear revolves.

2. In a wire tying device for hay balers,

a tying head, a twisting gear revolubly journaled to said head, a revoluble cutter blade carried by the head and frictionally engaging said gear, a stop mechanism engageable with the blade to hold the same from movement while the gear revolves, and means to successively operate the gear and the stop mechanism.

3. In a wire tying device for hay balers,

a reciprocable tying head, tying mechanism carried by the head, a cutting blade carried bythe head and frictionally movable with the tying mechanism, a stop mechanism adapted to engage the blade, and gearing arranged to move successively the head into tying position, the tying mechanism and cutting blade, the stop mechanism into and out of stopping position and the head into inoperative position.

4. In a wire tying device for hay balers, a reciprocable tying head, tying mechanism carried by the head, a cutting bladecarried by the head and frictionally movable with the tying mechanism, a stop mechanism adapted to engage the blade, and gearing arranged to move successively the head into tying position, the tying mechanism and cutting blade, the stop mechanism into and out of stopping position and the head into inoperative position; in combination with a second reciprocable head cooperating with the first head, and gearing arranged to coordinate the movements of the second head with the movements of the first head.

5. In a tying head for hay balers, a drive shaft, a gear fixed on said drive shaft, a cam fixed on said drive shaft, an idler gear meshing with the first mentioned gear, a tying gear meshing with the idler gear and provided with deepened spaces between certain of the teeth to constitute Wire receiving notches, an angular plate provided with wire cutting notches and arranged concen tric with and frictionally moved bythe tying gear, and a stop plate having one end engaging the cam and the other end engageable with the plate.

6. In a tying head for hay balers, a drive shaft, a gear fixed on said drive shaft, a cam fixed on said drive shaft, an idler gear meshing with the first mentioned gear, a tying gear meshing with the idler gear and provided with deepened spaces between certain of the teeth to constitute wire receiving notches, an angular plate provided with wire cutting notches and arranged concentric with and frictionally moved by the tying gear, a stop plate having one end engaging the cam and the other end engageable wlth the plate, and means to successively reciprocate the head and actuate the drive shaft.

In testimony whereof, we allix our signatures in the presence of two Witnesses.

Witnesses:

C. W. VANCE, MAUD RHo'rnN.

copies of thisrpatent may be obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, D. G. 

